October 25 & 26, 2007
Observatory Hill, Victoria, BC, Canada

This image illustrates how much the gas cloud surrounding the comet has grown in size over the 24 hour period.

The 'contoured' versions of the images on the right are 64 colour paletted version of the original images on the left. This technique highlights the rings of similar levels of light, which illustrates the shape of the comet's various parts. It also shows the faint blue ring outside the gas cloud.

Details:

Refer to details for each individual image.

ACDSee Pro 2: convert to 24 bit RGB, image crop, and conversion to jpg.
Corel PhotoPaint X3: produced contoured version of the original image, and composite of 4 images for the two day comparison.